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Simulation.cuh
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#ifndef __SIMULATION
#define __SIMULATION
#include "Libraries.h"
// Runs a single iteration of the simulation
void simulate_fluid(fluid_state& state, std::vector<OBJECT>& object_list,
int ACCURACY_STEPS = 35, bool DEBUG = false, int frame = 0,
float Dissolve_rate = 0.95f, float Ambient_temp = 0.0f,
float Diverge_Rate = 0.5f, float Smoke_Buoyancy = 1.0f, float Pressure = -1.0f, float Flame_Dissolve = 0.99f,
float sscale = 0.7, float sintensity = 1, float soffset = 0.07, bool Upsampling = false, bool UpsamplingVelocity = false,
bool UpsamplingDensity = false, float time_anim = 0.5, float density_cutoff = 0.01f, float deviceCount = 1,
float max_velocity = 3.0f, float influence_on_velocity = 0.1f, int deviceIndex = 0, int NOISE_R = 64)
{
float AMBIENT_TEMPERATURE = Ambient_temp;//0.0f
//float BUOYANCY = buoancy; //1.0f
/////////////GLOBAL EVALUATE//////////////////////
//Smoke_Buoyancy += 0.5f * cosf(-0.8f * float(state.step));
//////////////////////////////////////////////////
unsigned char current_device = 0;
//std::cout << "deviceIndex: " << deviceIndex << std::endl;
int3* dim_start, * dim_end;
dim_start = new int3[deviceCount];
dim_end = new int3[deviceCount];
if (deviceCount == 1) {
dim_start[0] = make_int3(0, 0, 0);
dim_end[0] = state.dim;
}
else if (deviceCount == 2) {
dim_start[0] = make_int3(0, 0, 0);
dim_end[0] = make_int3(state.dim.x, state.dim.y / 2, state.dim.z);
dim_start[1] = dim_end[0];
dim_end[1] = state.dim;
std::cout << "Mulit-GPU simulating is currently work in progress" << std::endl;
exit(1);
}
else {
std::cout << "More gpus are not supported yet" << std::endl;
exit(1);
}
//cudaStream_t stream1; cudaStreamCreate(&stream1);
//cudaStream_t stream2; cudaStreamCreate(&stream2);
float measured_time = 0.0f;
cudaEvent_t start, stop;
cudaEventCreate(&start);
cudaEventCreate(&stop);
//std::cout << "|" << BLOCK_SIZE << ";" << LOC_SIZE << "|";
const int s = BLOCK_SIZE;//8/
dim3 block(s, s, s);
dim3 grid((state.dim.x + block.x - 1) / block.x,
(state.dim.y + block.y - 1) / block.y,
(state.dim.z + block.z - 1) / block.z);
cudaEventRecord(start, 0);
cudaSetDevice(deviceIndex);
current_device = 0;
advection << <grid, block >> > (
state.velocity->readTargett(current_device),
state.velocity->readTargett(current_device),
state.velocity->writeTargett(current_device),
state.dim, state.time_step, 1.0);//1.0
state.velocity->swap();
advection << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.temperature->writeTargett(current_device),
state.dim, state.time_step, 0.998);//0.998
state.temperature->swap();
advection << <grid, block >> > (
state.velocity->readTargett(current_device),
state.flame->readTargett(current_device),
state.flame->writeTargett(current_device),
state.dim, state.time_step, Flame_Dissolve);
state.flame->swap();
advection << <grid, block >> > ( //zanikanie
state.velocity->readTargett(current_device),
state.density->readTargett(current_device),
state.density->writeTargett(current_device),
state.dim, state.time_step, Dissolve_rate);//0.995
state.density->swap();
/*
for (int i = 0; i < deviceCount; i++) {
current_device = i;
cudaSetDevice(current_device);
advection << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.temperature->writeTargett(current_device),
dim_start[i], dim_end[i], state.dim, state.time_step, 0.998);//0.998
state.temperature->swap();
advection << <grid, block >> > (
state.velocity->readTargett(current_device),
state.flame->readTargett(current_device),
state.flame->writeTargett(current_device),
dim_start[i], dim_end[i], state.dim, state.time_step, Flame_Dissolve);
state.flame->swap();
advection << <grid, block >> > ( //zanikanie
state.velocity->readTargett(current_device),
state.density->readTargett(current_device),
state.density->writeTargett(current_device),
dim_start[i], dim_end[i], state.dim, state.time_step, Dissolve_rate);//0.995
state.density->swap();
}
current_device = 0;
cudaSetDevice(current_device);
*/
//wznoszenie siê dymu
buoyancy << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.density->readTargett(current_device),
state.velocity->writeTargett(current_device),
AMBIENT_TEMPERATURE, state.time_step, Smoke_Buoyancy, state.f_weight, state.dim); //1.0f
state.velocity->swap();
float3 location = state.impulseLoc;
/////Z - glebia
/////X - lewo prawo
/////Y - gora dol
float MOVEMENT_SIZE = 3.0;//9
float MOVEMENT_SPEED = 20;//10
bool MOVEMENT = true;
//clear collision list
checkCudaErrors(cudaMemsetAsync(state.collision->readTargett(current_device), 0.0, state.collision->byteCount()));
if (DEBUG || true)
for (int i = 0; i < object_list.size(); i++) {
OBJECT current = object_list[i];
//INITIAL ANIMATION
/*
if (MOVEMENT && current.get_type() != "explosion") {
if (EXAMPLE__ == 1) {
object_list[i].set_location(current.get_location().x + MOVEMENT_SIZE * 2.0 * sinf(-0.04f * MOVEMENT_SPEED * float(state.step)),
current.get_location().y + cosf(-0.03f * float(state.step)),
current.get_location().z + MOVEMENT_SIZE * cosf(-0.02f * MOVEMENT_SPEED * float(state.step))
);
}
else if (EXAMPLE__ == 2) {
float MOVEMENT_SIZE = 9.0;//9
float MOVEMENT_SPEED = 0.7;//10
object_list[i].set_location(current.get_location().x + MOVEMENT_SIZE * sinf(-0.12786786f * MOVEMENT_SPEED * float(state.step)),
current.get_location().y + MOVEMENT_SIZE * 0.05f * cosf(-0.03f * float(state.step)),
current.get_location().z + MOVEMENT_SIZE * cosf(-0.0767637f * MOVEMENT_SPEED * float(state.step))
);
}
}
*/
//REAL ANIMATION
if (current.get_type() == "explosion" || current.get_type() == "emitter") { // RESCALE
if (frame >= current.frame_range_min && frame <= current.frame_range_max) {
sphere_vel << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size, current.previous_location, current.previous_size,
max_velocity, influence_on_velocity,
state.dim
);
object_list.at(i).update();
//std::cout << cudaGetErrorString(cudaGetLastError());
}
}
if (current.get_type() == "particle") {
if (frame >= current.frame_range_min && frame < current.frame_range_max) {
std::vector<std::thread> threads;
/* //3.5fps
threads.push_back(std::thread([&]() {
for (int zz = 0; zz < current.positions[(frame - current.frame_range_min) % current.positions.size()].size(); zz++) {
impulse << <grid, block >> > (
state.flame->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseTemp(),
state.dim
);
}
}));
threads.push_back(std::thread([&]() {
for (int zz = 0; zz < current.positions[(frame - current.frame_range_min) % current.positions.size()].size(); zz++) {
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseTemp(),
state.dim
);
}
}));
threads.push_back(std::thread([&]() {
for (int zz = 0; zz < current.positions[(frame - current.frame_range_min) % current.positions.size()].size(); zz++) {
impulse << <grid, block >> > (
state.density->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseDensity(),
state.dim
);
}
}));
threads.push_back(std::thread([&]() {
for (int zz = 0; zz < current.positions[(frame - current.frame_range_min) % current.positions.size()].size(); zz++) {
particle_vel << < grid, block >> > (
state.velocity->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale),
current.size, current.velocities[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale,
max_velocity, influence_on_velocity,
state.dim
);
}
}));
*/
for (int zz = 0; zz < current.positions[(frame - current.frame_range_min) % current.positions.size()].size(); zz++) {
impulse << <grid, block >> > (
state.flame->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.density->readTargett(current_device),
(current.get_location() + current.positions[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale), current.get_size(),
current.get_impulseDensity(),
state.dim
);
particle_vel << < grid, block >> > (
state.velocity->readTargett(current_device),
(current.get_location() + current.positions[(frame-current.frame_range_min)%current.positions.size()][zz] * current.scale),
current.size, current.velocities[(frame - current.frame_range_min) % current.positions.size()][zz] * current.scale,
max_velocity, influence_on_velocity,
state.dim
);
}
/*
*/
for (auto& thread : threads)
thread.join();
}
}
//GIVING THE FLOW
float3 SIZEE = make_float3(current.get_size(), current.get_size(), current.get_size());
if (current.get_type() == "emitter") {
wavey_impulse_temperature_new << < grid, block >> > (
state.temperature->readTargett(current_device),
state.velocity->readTargett(current_device),
current.get_location(), SIZEE,
current.get_impulseTemp(), current.get_initial_velocity(), current.get_velocity_frequence(),
state.dim,
frame
);
wavey_impulse_temperature_new << < grid, block >> > (
state.flame->readTargett(current_device),
state.velocity->readTargett(current_device),
current.get_location(), SIZEE,
current.get_impulseTemp(), current.get_initial_velocity(), current.get_velocity_frequence(),
state.dim,
frame
);
wavey_impulse_density_new << < grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), SIZEE,
current.get_impulseDensity(), 1.0f, current.get_velocity_frequence(),
state.dim,
frame
);
}
/*
else if (current.get_type() == "smoke") {
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseDensity(),
state.dim
);
}
*/
else if (current.get_type() == "explosion") {
if (frame >= current.frame_range_min && frame <= current.frame_range_max) {
impulse << <grid, block >> > (
state.flame->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseDensity(),
state.dim
);
}
}
else if (current.get_type() == "object") {
if (frame >= current.frame_range_min && frame <= current.frame_range_max) {
if (current.is_emitter) {
impulse_vdb_compressed << <grid, block >> > (
state.flame->readTargett(current_device),
current.get_location(),
current.get_impulseTemp(),
state.dim,
current.collisions[(frame - current.frame_range_min) % current.collisions.size()],
current.get_impulseTemp()
);
impulse_vdb_compressed << <grid, block >> > (
state.temperature->readTargett(current_device),
current.get_location(),
current.get_impulseTemp(),
state.dim,
current.collisions[(frame - current.frame_range_min) % current.collisions.size()],
current.get_impulseTemp()
);
impulse_vdb_compressed << <grid, block >> > (
state.density->readTargett(current_device),
current.get_location(),
current.get_impulseDensity(),
state.dim,
current.collisions[(frame - current.frame_range_min) % current.collisions.size()],
0.7f
);
}
else {
collision_vdb << <grid, block >> > (
state.collision->readTargett(current_device),
current.get_location(),
current.get_impulseDensity(),
state.dim,
current.collisions[(frame - current.frame_range_min) % current.collisions.size()]
);
}
}
}
else if (current.get_type() == "fff") {
if (current.square) {
force_field_force << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
state.dim
);
}
else {
force_field_force << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
state.dim
);
}
}
else if (current.get_type() == "ffp") {
if (current.square) {
force_field_power << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
state.dim
);
}
else {
force_field_power << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
state.dim
);
}
}
else if (current.get_type() == "fft") {
force_field_turbulence2 << <grid, block >> > (
state.velocity->readTargett(current_device),
state.velocity->readTargett(current_device),
state.noise->readTargett(current_device),
current.size,
current.get_location(),
state.dim,
current.square ? current.force_strength : current.force_strength * 0.01,
0.7f,
current.scale,
frame,
current.velocity_frequence,
NOISE_R
);
/*
if (current.square) {
force_field_turbulence << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength, current.set_vel_freq + current.velocity_frequence,
state.dim,
frame
);
}
else {
force_field_turbulence << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength, current.set_vel_freq + current.velocity_frequence,
state.dim,
frame
);
}
*/
if (current.vel_freq_mov) {
current.set_vel_freq += current.vel_freq_step;
if (current.set_vel_freq >= current.max_vel_freq)
current.vel_freq_mov = false;
}
else {
current.set_vel_freq -= current.vel_freq_step;
if (current.set_vel_freq <= 0.0)
current.vel_freq_mov = true;
}
}
else if (current.get_type() == "ffw") {
if (current.square) {
float3 direction = make_float3(current.force_direction[0], current.force_direction[1], current.force_direction[2]);
force_field_wind << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
direction,
state.dim
);
}
else {
float3 direction = make_float3(current.force_direction[0], current.force_direction[1], current.force_direction[2]);
force_field_wind << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
direction,
state.dim
);
}
}
else if (current.get_type() == "cols") {
/*
collision_sphere << < grid, block >> > (
state.velocity->readTarget(),
current.get_location(), current.size,
state.dim
);
*/
collision_sphere2 << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.density->readTargett(current_device),
state.dim, current.get_location(), current.size,
AMBIENT_TEMPERATURE);
}
//if (false)
if (current.get_type() == "smoke" || current.get_type() == "vdbs") {
current.cudaFree();
object_list.erase(object_list.begin() + i); //remove emitter from the list
}
}
//environment turbulence
divergence << <grid, block >> > (
state.velocity->readTargett(current_device),
state.diverge->readTargett(current_device), state.dim, Diverge_Rate);//0.5
/*
*/
collision << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.density->readTargett(current_device),
state.flame->readTargett(current_device),
state.collision->readTargett(current_device),
state.dim, AMBIENT_TEMPERATURE);
// clear pressure
impulse << <grid, block >> > (
state.pressure->readTargett(current_device),
make_float3(0.0), 1000000.0f,
0.0f, state.dim);
#pragma unroll
for (int i = 0; i < ACCURACY_STEPS; i++) {
pressure_solve << <grid, block >> > (
state.diverge->readTargett(current_device),
state.pressure->readTargett(current_device),
state.pressure->writeTargett(current_device),
state.dim, Pressure); //-1.0
state.pressure->swap();
}
subtract_pressure << <grid, block >> > (
state.velocity->readTargett(current_device),
state.velocity->writeTargett(current_device),
state.pressure->readTargett(current_device),
state.dim, -1.0f * Pressure);//1.0
//state.dim, 1.0f);//1.0
state.velocity->swap();
/*
*/
if (Upsampling) {
//BETA
#pragma unroll
for (int i = 0; i < 1; i++) {
if (UpsamplingDensity) {
applyNoiseDT << <grid, block >> > (
state.temperature->readTargett(current_device),
state.density->readTargett(current_device),
state.temperature->writeTargett(current_device),
state.density->writeTargett(current_device),
state.noise->readTargett(current_device),
state.dim,
/*intensity=0.45f*/sintensity,
/*offset=0.075f*/soffset,
/*scale=0.7*/sscale,
frame,
time_anim,
density_cutoff,
NOISE_R
);
state.temperature->swap();
state.density->swap();
}
if (UpsamplingVelocity) {
applyNoiseV << <grid, block >> > (
state.velocity->readTargett(current_device),
state.velocity->writeTargett(current_device),
state.noise->readTargett(current_device),
state.dim,
/*intensity=0.45f*/sintensity,
/*offset=0.075f*/soffset,
/*scale=0.7*/sscale,
frame,
time_anim,
NOISE_R
);
state.velocity->swap();
}
}
}
cudaEventRecord(stop, 0);
cudaThreadSynchronize();
cudaEventElapsedTime(&measured_time, start, stop);
cudaEventDestroy(start);
cudaEventDestroy(stop);
std::cout << "Simulation Time: " << measured_time << " ||";
}
void AddObjects(fluid_state& state, std::vector<OBJECT>& object_list, bool DEBUG, int frame, dim3 grid, dim3 block,
int current_device, float max_velocity, float influence_on_velocity, float AMBIENT_TEMPERATURE) {
/////Z - glebia
/////X - lewo prawo
/////Y - gora dol
float MOVEMENT_SIZE = 3.0;//9
float MOVEMENT_SPEED = 20;//10
bool MOVEMENT = true;
if (DEBUG || true)
for (int i = 0; i < object_list.size(); i++) {
OBJECT current = object_list[i];
//INITIAL ANIMATION
if (MOVEMENT && current.get_type() != "explosion") {
if (EXAMPLE__ == 1) {
object_list[i].set_location(current.get_location().x + MOVEMENT_SIZE * 2.0 * sinf(-0.04f * MOVEMENT_SPEED * float(state.step)),
current.get_location().y + cosf(-0.03f * float(state.step)),
current.get_location().z + MOVEMENT_SIZE * cosf(-0.02f * MOVEMENT_SPEED * float(state.step))
);
}
else if (EXAMPLE__ == 2) {
float MOVEMENT_SIZE = 9.0;//9
float MOVEMENT_SPEED = 0.7;//10
object_list[i].set_location(current.get_location().x + MOVEMENT_SIZE * sinf(-0.12786786f * MOVEMENT_SPEED * float(state.step)),
current.get_location().y + MOVEMENT_SIZE * 0.05f * cosf(-0.03f * float(state.step)),
current.get_location().z + MOVEMENT_SIZE * cosf(-0.0767637f * MOVEMENT_SPEED * float(state.step))
);
}
}
//REAL ANIMATION
/**/
if (current.get_type() == "explosion") { // RESCALE
if (frame >= current.frame_range_min && frame <= current.frame_range_max) {
/*
float direction = 1.0f;
resize_sphere_vel << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), object_list[i].size, direction, max_velocity, influence_on_velocity,
state.dim
);
object_list[i].size += direction;
*/
//std::cout << cudaGetErrorString(cudaGetLastError());
}
}
//GIVING THE FLOW
float3 SIZEE = make_float3(current.get_size(), current.get_size(), current.get_size());
if (current.get_type() == "emitter") {
wavey_impulse_temperature_new << < grid, block >> > (
state.temperature->readTargett(current_device),
state.velocity->readTargett(current_device),
current.get_location(), SIZEE,
current.get_impulseTemp(), current.get_initial_velocity(), current.get_velocity_frequence(),
state.dim,
frame
);
wavey_impulse_density_new << < grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), SIZEE,
current.get_impulseDensity(), 1.0f, current.get_velocity_frequence(),
state.dim,
frame
);
}
else if (current.get_type() == "smoke") {
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseDensity(),
state.dim
);
}
else if (current.get_type() == "explosion") {
if (frame >= current.frame_range_min && frame <= current.frame_range_max) {
impulse << <grid, block >> > (
state.flame->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.temperature->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseTemp(),
state.dim
);
impulse << <grid, block >> > (
state.density->readTargett(current_device),
current.get_location(), current.get_size(),
current.get_impulseDensity(),
state.dim
);
}
}
else if (current.get_type() == "fff") {
if (current.square) {
force_field_force << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
state.dim
);
}
else {
force_field_force << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
state.dim
);
}
}
else if (current.get_type() == "ffp") {
if (current.square) {
force_field_power << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
state.dim
);
}
else {
force_field_power << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
state.dim
);
}
}
else if (current.get_type() == "fft") {
if (current.square) {
force_field_turbulence << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength, current.set_vel_freq + current.velocity_frequence,
state.dim,
frame
);
}
else {
force_field_turbulence << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength, current.set_vel_freq + current.velocity_frequence,
state.dim,
frame
);
}
if (current.vel_freq_mov) {
current.set_vel_freq += current.vel_freq_step;
if (current.set_vel_freq >= current.max_vel_freq)
current.vel_freq_mov = false;
}
else {
current.set_vel_freq -= current.vel_freq_step;
if (current.set_vel_freq <= 0.0)
current.vel_freq_mov = true;
}
}
else if (current.get_type() == "ffw") {
if (current.square) {
float3 direction = make_float3(current.force_direction[0], current.force_direction[1], current.force_direction[2]);
force_field_wind << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength * current.force_strength,
direction,
state.dim
);
}
else {
float3 direction = make_float3(current.force_direction[0], current.force_direction[1], current.force_direction[2]);
force_field_wind << < grid, block >> > (
state.velocity->readTargett(current_device),
current.get_location(), current.size,
current.force_strength,
direction,
state.dim
);
}
}
else if (current.get_type() == "cols") {
/*
collision_sphere << < grid, block >> > (
state.velocity->readTarget(),
current.get_location(), current.size,
state.dim
);
*/
collision_sphere2 << <grid, block >> > (
state.velocity->readTargett(current_device),
state.temperature->readTargett(current_device),
state.density->readTargett(current_device),
state.dim, current.get_location(), current.size,
AMBIENT_TEMPERATURE);
}
//if (false)
if (current.get_type() == "smoke" || current.get_type() == "vdbs") {
current.cudaFree();
object_list.erase(object_list.begin() + i); //remove emitter from the list
}
}
}
void simulate_fluid3(fluid_state& state, std::vector<OBJECT>& object_list,
int ACCURACY_STEPS = 35, bool DEBUG = false, int frame = 0,
float Dissolve_rate = 0.95f, float Ambient_temp = 0.0f,
float Diverge_Rate = 0.5f, float Smoke_Buoyancy = 1.0f, float Pressure = -1.0f, float Flame_Dissolve = 0.99f,
float sscale = 0.7, float sintensity = 1, float soffset = 0.07, bool Upsampling = false, bool UpsamplingVelocity = false,
bool UpsamplingDensity = false, float time_anim = 0.5, float density_cutoff = 0.01f, int deviceCount = 1,
float max_velocity = 3.0f, float influence_on_velocity = 0.1f, int deviceIndex = 0, int NOISE_R = 64, dim3 grid = NULL, dim3 block = NULL
, dim3 grid2 = NULL)
{
float AMBIENT_TEMPERATURE = Ambient_temp;//0.0f
//float BUOYANCY = buoancy; //1.0f
/////////////GLOBAL EVALUATE//////////////////////
//Smoke_Buoyancy += 0.5f * cosf(-0.8f * float(state.step));
//////////////////////////////////////////////////
unsigned char current_device = 0;
auto lista = enumerate(deviceIndex, deviceCount);
int3* dim_start, * dim_end;
dim_start = new int3[deviceCount];
dim_end = new int3[deviceCount];
if (deviceCount == 1) {
dim_start[0] = make_int3(0, 0, 0);
dim_end[0] = state.dim;
cudaSetDevice(deviceIndex);
current_device = 0;
}
else if (deviceCount == 2) {
dim_start[0] = make_int3(0, 0, 0);
dim_end[0] = make_int3(state.dim.x, state.dim.y / 2, state.dim.z);